There is a forum for filtration, you should probably post there, or mods could move this for you. However a pair of Fulval FX5 sholud cover it with some room to spare.
what do you plan on stocking it with? For large fish you want to turn the tank over 8 to 10 times an hour. So you should flow minimum 1800gph. You need a wet dry I'd only use a big canister filter as added filtration.